dict = {"los1" : 11, "los2": 22, "los3":"los3"}

print(dict.items())
print(dict.keys(), dict.values())

for k, v in dict.items():
    print("k=%s" % k, end=" ")
    print("v=%s" % v, end=" ")

print("\n")
for k in dict.keys():
    print("k=%s" % k, end=" ")